Image Analyzer
Upload an image to analyze its properties and get optimization tips.
How to Use This Tool
- Drag and drop an image onto the upload area, or click to select a file
- View the analysis results including dimensions, file size, and format
- Follow the optimization tips to improve your image for web use
Why Analyze Your Images?
Understanding your image properties helps you make informed decisions about optimization. Large file sizes slow down your website, while incorrect dimensions can cause layout issues or wasted bandwidth.
Why Analyze Your Images?
Understanding your image properties helps you make informed decisions about optimization. Large file sizes slow down your website, while incorrect dimensions can cause layout issues or wasted bandwidth.
Frequently Asked Questions
What does the analyzer check?
File size in bytes and kilobytes, pixel dimensions and aspect ratio, the real format (which can differ from the extension), and estimated load cost — plus targeted optimization suggestions based on what it finds.
Are my images uploaded to a server?
No. Analysis runs locally in your browser using the File API — nothing leaves your device.
What is a good file size for a web image?
As a rule of thumb: under 100 KB for content images, under 200 KB for heroes, and under 30 KB for thumbnails. Modern formats like WebP and AVIF make those targets easy to hit.
Why does the format differ from the file extension?
Extensions are just names — the bytes inside declare the real format. Files renamed from PNG to JPEG (or saved by tools that ignore extensions) render by their actual type, which is what the analyzer reports.